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#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#include <assert.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "log/log.h"
#include <talloc/talloc.h>
#include "system.h"
const struct pb_system_apps pb_system_apps = {
.prefix = PREFIX,
.cp = "/bin/cp",
.kexec = "/sbin/kexec",
.mount = "/bin/mount",
.shutdown = "/sbin/shutdown",
.sftp = "/usr/bin/sftp",
.tftp = "/usr/bin/tftp",
.umount = "/bin/umount",
.wget = "/usr/bin/wget",
};
int pb_mkdir_recursive(const char *dir)
{
struct stat statbuf;
char *str, *sep;
int mode = 0755;
if (!*dir)
return 0;
if (!stat(dir, &statbuf)) {
if (!S_ISDIR(statbuf.st_mode)) {
pb_log("%s: %s exists, but isn't a directory\n",
__func__, dir);
return -1;
}
return 0;
}
str = talloc_strdup(NULL, dir);
sep = strchr(*str == '/' ? str + 1 : str, '/');
while (1) {
/* terminate the path at sep */
if (sep)
*sep = '\0';
if (mkdir(str, mode) && errno != EEXIST) {
pb_log("mkdir(%s): %s\n", str, strerror(errno));
return -1;
}
if (!sep)
break;
/* reset dir to the full path */
strcpy(str, dir);
sep = strchr(sep + 1, '/');
}
talloc_free(str);
return 0;
}
int pb_rmdir_recursive(const char *base, const char *dir)
{
char *cur, *pos;
/* sanity check: make sure that dir is within base */
if (strncmp(base, dir, strlen(base)))
return -1;
cur = talloc_strdup(NULL, dir);
while (strcmp(base, dir)) {
rmdir(dir);
/* null-terminate at the last slash */
pos = strrchr(dir, '/');
if (!pos)
break;
*pos = '\0';
}
talloc_free(cur);
return 0;
}
/**
* pb_run_cmd - Run the supplied command.
* @cmd_argv: An argument list array for execv.
*/
int pb_run_cmd(const char *const *cmd_argv, int wait)
{
#if defined(DEBUG)
enum {do_debug = 1};
#else
enum {do_debug = 0};
#endif
int status;
pid_t pid;
if (do_debug) {
const char *const *p = cmd_argv;
pb_log("%s: ", __func__);
while (*p) {
pb_log("%s ", *p);
p++;
}
pb_log("\n");
} else
pb_log("%s: %s\n", __func__, cmd_argv[0]);
pid = fork();
if (pid == -1) {
pb_log("%s: fork failed: %s\n", __func__, strerror(errno));
return -1;
}
if (pid == 0) {
int log = fileno(pb_log_get_stream());
/* Redirect child output to log. */
status = dup2(log, STDOUT_FILENO);
assert(status != -1);
status = dup2(log, STDERR_FILENO);
assert(status != -1);
execvp(cmd_argv[0], (char *const *)cmd_argv);
pb_log("%s: exec failed: %s\n", __func__, strerror(errno));
exit(EXIT_FAILURE);
}
if (!wait && !waitpid(pid, &status, WNOHANG))
return 0;
if (waitpid(pid, &status, 0) == -1) {
pb_log("%s: waitpid failed: %s\n", __func__,
strerror(errno));
return -1;
}
if (do_debug && WIFSIGNALED(status) && WTERMSIG(status) == SIGINT)
pb_log("%s: signaled\n", __func__);
if (!WIFEXITED(status)) {
pb_log("%s: %s failed\n", __func__, cmd_argv[0]);
return -1;
}
if (WEXITSTATUS(status))
pb_log("%s: WEXITSTATUS %d\n", __func__, WEXITSTATUS(status));
return WEXITSTATUS(status);
}
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